{{Cite journal| doi = 10.1016/j.annemergmed.2011.12.013| issn = 1097-6760 (Electronic) 0196-0644 (Linking)| volume = 60| issue = 3| pages = 317–25 e3| last1 = Grossmann| first1 = F. F.| last2 = Zumbrunn| first2 = T.| last3 = Frauchiger| first3 = A.| last4 = Delport| first4 = K.| last5 = Bingisser| first5 = R.| last6 = Nickel| first6 = C. H.| title = At risk of undertriage? Testing the performance and accuracy of the emergency severity index in older emergency department patients| journal = Ann Emerg Med| date = 2012-03-10| pmid = 22401951}}